Which of the following statements is true?

Question

$\begin {array} {1 1} (A)\;\text{Spontaneous reactions never require initiation.} \\ (B)\;\text{Negative value of $ \Delta S$ is the sole criterion of spontaneity.} \\ (C)\; \text{2nd law of thermodynamics tells that entropy of universe is constant.} \\ (D)\;\text{The dissociation of ammonium chloride involves an increase in randomness.} \end {array}$